Commit 7f629dfc authored by Jingning Han's avatar Jingning Han Committed by Gerrit Code Review
Browse files

SSSE3 assembly implementation of 8x8 Hadamard transform

It uses about 10% less CPU cycles than the SSE2 intrinsic
implementation.

Change-Id: I91017c0c068679a214b98cdd4cff3a6facfb7499
parent 9922e434
......@@ -1110,7 +1110,7 @@ add_proto qw/unsigned int vp9_avg_4x4/, "const uint8_t *, int p";
specialize qw/vp9_avg_4x4 sse2/;
add_proto qw/void vp9_hadamard_8x8/, "int16_t const *src_diff, int src_stride, int16_t *coeff";
specialize qw/vp9_hadamard_8x8 sse2/;
specialize qw/vp9_hadamard_8x8 sse2/, "$ssse3_x86_64";
add_proto qw/void vp9_hadamard_16x16/, "int16_t const *src_diff, int src_stride, int16_t *coeff";
specialize qw/vp9_hadamard_16x16 sse2/;
......
......@@ -178,5 +178,78 @@ cglobal fdct8x8, 3, 5, 13, input, output, stride
mova [outputq + 96], m6
mova [outputq + 112], m7
RET
%macro HMD8_1D 0
psubw m8, m0, m1
psubw m9, m2, m3
paddw m0, m1
paddw m2, m3
SWAP 1, 8
SWAP 3, 9
psubw m8, m4, m5
psubw m9, m6, m7
paddw m4, m5
paddw m6, m7
SWAP 5, 8
SWAP 7, 9
psubw m8, m0, m2
psubw m9, m1, m3
paddw m0, m2
paddw m1, m3
SWAP 2, 8
SWAP 3, 9
psubw m8, m4, m6
psubw m9, m5, m7
paddw m4, m6
paddw m5, m7
SWAP 6, 8
SWAP 7, 9
psubw m8, m0, m4
psubw m9, m1, m5
paddw m0, m4
paddw m1, m5
SWAP 4, 8
SWAP 5, 9
psubw m8, m2, m6
psubw m9, m3, m7
paddw m2, m6
paddw m3, m7
SWAP 6, 8
SWAP 7, 9
%endmacro
INIT_XMM ssse3
cglobal hadamard_8x8, 3, 5, 10, input, stride, output
lea r3, [2 * strideq]
lea r4, [4 * strideq]
mova m0, [inputq]
mova m1, [inputq + r3]
lea inputq, [inputq + r4]
mova m2, [inputq]
mova m3, [inputq + r3]
lea inputq, [inputq + r4]
mova m4, [inputq]
mova m5, [inputq + r3]
lea inputq, [inputq + r4]
mova m6, [inputq]
mova m7, [inputq + r3]
HMD8_1D
TRANSPOSE8X8 0, 1, 2, 3, 4, 5, 6, 7, 9
HMD8_1D
mova [outputq + 0], m0
mova [outputq + 16], m1
mova [outputq + 32], m2
mova [outputq + 48], m3
mova [outputq + 64], m4
mova [outputq + 80], m5
mova [outputq + 96], m6
mova [outputq + 112], m7
RET
%endif
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